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Webapp Testing

Webapp Testing is an agent skill (a SKILL.md file) from anthropics/skills. Toolkit for interacting with and testing local web applications using Playwright. It works with Claude Code and has 179,945 GitHub stars across a repository of 9 listed skills. Install it by copying the skill folder into your agent's skills directory.

github.com/anthropics/skills/skills/webapp-testing (opens in a new tab)

  • Official
  • Multi-skill repo
  • Plugin marketplace
  • Testing & QA
  • Actively maintained
View on GitHub (opens in a new tab)View on skills.sh (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add anthropics/skills
/plugin   # browse anthropic-agent-skills and install the plugin that contains webapp-testing

In the Claude apps, zip the webapp-testing folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/anthropics/skills.git
cp -r skills/skills/webapp-testing .agents/skills/webapp-testing   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/anthropics/skills.git
cp -r skills/skills/webapp-testing .cursor/skills/webapp-testing   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs. To test local web applications, write native Python Playwright scripts.

More skills in anthropics/skills

9 skills are listed from this repository.

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All Testing & QA

FAQ

Webapp Testing FAQ

Still curious? Email info@appsgit.com.

What is the Webapp Testing skill?

Webapp Testing is an agent skill (a SKILL.md file) from anthropics/skills. Toolkit for interacting with and testing local web applications using Playwright. It works with Claude Code and has 179,945 GitHub stars across a repository of 9 listed skills. Install it by copying the skill folder into your agent's skills directory. Its SKILL.md lives at github.com/anthropics/skills/skills/webapp-testing.

How do I install the Webapp Testing skill?

In Claude Code, run /plugin marketplace add anthropics/skills, then install its plugin from /plugin. For Codex or Cursor, copy the webapp-testing folder into .agents/skills/ or .cursor/skills/.

Is the Webapp Testing skill free?

Yes. The repository is open source under the Apache-2.0 license.

Is Webapp Testing maintained?

The repository's most recent commit was on Oct 5, 2026. appsgit only lists skills from repositories with a commit in the last six months.